Prince Harry and Meghan Markle will marry today during a midday service at St George's Chapel in Windsor Castle.
Though the hustle and bustle at Windsor will continue throughout the day, many royal fans are celebrating at home.
At ITV News, we have been asking you to share with us how you are spending the big day.
Here's a selection of your photographs so far:
Special coverage of Harry and Meghan – The Royal Wedding will be broadcast on ITV from 9.25am on Saturday 19th May.
For more on the wedding and other stories on the Royal Family, follow the ITV News Royals page on Facebook.
Have you been celebrating today? Send us your pictures and video at RoyalWedding@itv.com